Categories

Posts Tagged ‘microcontroller’

Revisiting the DSETA board with an AT89C51ED2

Friday, October 6th, 2017

An update on Jesus Echavarria’s DSETA board we covered previously: Some months ago I review the DSETA board due the obsolescence of the microcontroller. I use this board in some projects succesfully. But when I try to manufacture a batch of this boards, I found that the microcontroller (AT89C51RE2) was...

Tags: ,
Posted in project logs | No Comments »

Microcontroller action potential generator

Monday, August 21st, 2017

Scott Harden writes: Here I demonstrate how to use a single microcontroller pin to generate action-potential-like waveforms. The output is similar my fully analog action potential generator circuit, but the waveform here is created in an entirely different way. A microcontroller is at the core of this project and determines...

Tags: ,
Posted in AVR, how-to | 1 Comment »

Intel(r) Quark(tm) micrcontroller D2000 based Environmental sensors board

Friday, December 16th, 2016

Sergey Kiselev designed and built an Intel Quark D2000 micrcontroller based Environmental sensors board: This is a fairly small (51 x 51 mm) board, equipped with a low power Intel Quark D2000 microcontroller, and several sensors (accelerator, temperature, humidity, atmospheric pressure), as well as a mikroBUS compatible header and a Grove...

Tags: ,
Posted in sensors | 2 Comments »

Light intensity meter using AT89C52 microcontroller

Thursday, October 20th, 2016

AM Bhatt over at Engineers Garage writes: In the given project, LDR is used to measure light intensity inside the room. With a minor change in the circuit, it can be used to measure outdoor light intensity also. It uses microcontroller AT89C52 and LCD to display light intensity. It also...

Tags: , ,
Posted in how-to | No Comments »

Atmel SAM D09 Development board

Monday, March 21st, 2016

Dan Watson has designed a development board for the Atmel SAM D09 microcontroller: The Atmel SAM D series of 32-bit microcontrollers includes several devices, each with a long list of features at great prices. Perhaps the best known of the series in the maker community is the SAM D21 due...

Tags: , ,
Posted in dev boards | No Comments »

ATtiny10 Mini Breakout Board

Monday, February 29th, 2016

Dan Watson has designed this very tiny breakout board for the Atmel ATtiny10. He wrote a post on his blog detailing its assembly: This breakout board is for the ATtiny10 microcontroller. The PCB is 0.25x0.325" and uses 0.050" header pins. The board could actually be made smaller, but I ran...

Tags: , ,
Posted in AVR | No Comments »

10A Variac Soft Starter

Friday, January 8th, 2016

Steve Gardner did a repair of a 10A Carroll & Meynell Variac and documented the whole process on his blog: I recently purchased a used 10A Carroll & Meynell Variac from eBay for use in the lab, however the variac often caused the 32A B-curve MCB in the consumer unit to...

Tags: , , , ,
Posted in repair | No Comments »

Comparing Microcontroller + Wifi Breakout boards

Friday, July 17th, 2015

Mike Barela writes, "A new post comparing WiFi / Microcontroller combo breakouts for Makers and the Internet of Things #ESP8266"   More details at Mike's 21stdigitalhome blog.

Tags: ,
Posted in wireless | 1 Comment »

Obstacle sensing walking stick for visually impaired persons

Wednesday, April 8th, 2015

Avinash Gupta wrote an article detailing his smart walking stick project for visually impaired persons This project is designed to guide a visually impaired person to walk and avoid bumping into obstacles. Low cost ultrasonic rangefinders along with a microcontroller is used to measure the distance to obstacles and if they are...

Tags: , ,
Posted in PIC, sensors | No Comments »

TI releases the MSP432 microcontroller

Wednesday, March 25th, 2015

Introducing MSP432: MSP’s new low-power 32-bit ARM® Cortex®-M4F MCUs TI is announcing an expanded MSP portfolio including a new family of 32‐bit processors built on the ARM Cortex‐M4F core. The first family includes the MSP432P401x MCUs with 48MHz speed, 1MSPS 14‐bit ADC, up to 256KB flash, up to 64B RAM...

Tags: , ,
Posted in ARM, MSP430 | 3 Comments »

PICnano Breadboard, a 4-Layer Dirty PCB project

Tuesday, February 10th, 2015

jechavarria shared his small 4-layer board based on the PIC18F2550 microcontroller project in the forum: The goal of this new design is try to have an Arduino Nano compatible module but with some new features, such have direct access to the power supply microcontroller. Via the project log forum.

Tags: , ,
Posted in project logs | No Comments »

ARM PRO MINI, an open source ARM M0 microcontroller board

Wednesday, February 4th, 2015

Zapta designed this open source ARM M0 microcontroller board, that is available at Github: ARM PRO MINI is a small barebone open source ARM M0 microcontroller board that is great for quick prototyping and as a starting point for your own ARM based custom designs. It was designed and named...

Tags: ,
Posted in ARM, open source | 2 Comments »

Audible frequency chirp sonar with the Stellaris Launchpad

Wednesday, January 21st, 2015

Jason Bowling writes: Over the last year I've been working towards an underwater sonar system for ROVs and surface boats. In order to learn the basic signal processing required to detect the echoes, I initially got a simple sonar working in air with a desktop conferencing USB speaker/mic running on...

Tags: , ,
Posted in ARM, hacks | No Comments »

Blueprintf – a bluetooth serial monitor

Thursday, January 15th, 2015

Bob Alexander of Galactic Studios made this bluetooth serial monitor for embedded microcontroller projects, the Blueprintf: One way of debugging microcontroller-based projects is to send messages out the UART serial port. Then, a UART-to-USB interface can feed the messages into your PC for display. But I wanted a small, portable device...

Tags: , ,
Posted in DIY, gadget | No Comments »

Microcontroller based running light controller

Tuesday, November 25th, 2014

Another project by Rajkumar Sharma over at Electronics Lab, a lights effects board using common bulbs: This project provides some lighting effect by the blinking pattern of the bulbs connected at its output. Up to 8 Bulbs can be connected in between connector CN2 to CN9 and AC power to...

Tags: ,
Posted in dev boards | 10 Comments »

Introducing RFToy, an Arduino-compatible gadget for radio frequency modules

Monday, November 10th, 2014

Ray Wang from RaysHobby has informed us of his latest open-source project called RFToy: it's an Arduino-compatible microcontroller board for interfacing with radio frequency (RF) modules, such as the popular 433/315MHz transmitter/receiver, and the nRF24L01 transceiver. The RFToy has a built-in ATmega328, USB-serial converter (CH340G), 128x64 OLED display, three buttons, and...

Tags: , ,
Posted in Arduino, RF | 8 Comments »

A NPN transistor Electret condenser microphone preamp for microcontrollers

Thursday, November 6th, 2014

Davide Gironi writes: This is a NPN Electret Condenser Microphone Preamp board design for the use with microcontrollers ADC. In order to make an electret condenser microphone signal "readable" by a microcontroller ADC, it has to be matched the ADC specification of the microcontroller. Most of the time it means,...

Tags: ,
Posted in hacks | No Comments »

8 channel relay board

Tuesday, November 4th, 2014

Rajkumar published another project on Electronics Lab, an 8 channel relay board: 8 Channel Relay Board is a simple and convenient way to interface 8 relays for switching application in your project. Input voltage level support TTL as well as CMOS. Easy interface with Microcontrollers based projects and analog circuits.

Tags: ,
Posted in project logs | 5 Comments »

App note: Getting started with the MAXQ622 evaluation kit

Saturday, October 4th, 2014

Here’s an getting started guide from Maxim describing their MAXQ622 low-power RISC microcontroller: This application note describes how to create, build, and debug applications targeted for the MAXQ622 low-power RISC microcontroller. The article uses the IAR Embedded Workbench toolset and C compiler available from IAR Systems.

Tags: , ,
Posted in app notes | No Comments »

Frequency counter with PIC16F628A

Tuesday, September 23rd, 2014

xristost blogged about the frequency counter module he made: First of all I wanted a PIC microcontroller to do the whole job without any additional ICs. Also I wanted to use the the familiar 16F628A, but because one of the portA pins (RA5) can be used only as input I was short...

Tags: , , ,
Posted in DIY, PIC | 9 Comments »

Next Page »

Recent Comments

  • Drone: So these go for around $330 USD and NO published calibration procedure online or otherwise? Given what's inside - I don't think I'll be considering...
  • Pekka Akselin: This is ridiculous!? :-) We are back at 256(!) byte EPROMs that needed multiple, a handful, of voltages to run! :-(
  • KH: Let's try a back-of-envelope calc balancing energies. From MCP1700 datasheet, there are graphs for a 200mA load step. Estimate the energy shortfall as 12uJ. Say...
  • Daniel: It's been a week and my comment is still awaiting moderation. Apparently the CIA doesn't want their involvement known?
  • KH: Agree, so okay, I guess he must have learned from somewhere. 100nF and 1000uF is so far apart, that was jarring; it's more magic incantation...